You could keep a record of logged in users at the application level, and
check this at each page request by any user - if a second user logs in
trigger session end event in an existing session.
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Regards
John Timney
ASP.NET MVP
Microsoft Regional Director
"The Crow" <q> wrote in message
news:ev***************@TK2MSFTNGP10.phx.gbl...
if a user logs in, i want other logged in user with the same credentials
to log out. how can i solve this problem?